Showerhead



FIG. 1 is a front perspective view of a showerhead showing our design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the figures are for the purpose of illustrating portions of the showerhead that form no part of the claimed design. 

The ornamental design for a showerhead, as shown and described. 